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Expired Canadian patentCanada

Dna constructs and methods to enhance the production of commercially viable transgenic plants

CA 2521674 C · Owner: Monsanto Technology Llc · Inventors: Krieger, Elysia; Ye, Xudong; Gilbertson, Larry

CIPO record

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Abstract From the Canadian patent

The present invention has incorporated a non-lethal negative selectable marker gene into the vector backbone DNA of a DNA plasmid used to transform plant cells. These transgenes are designed to express a non-lethal gene product in plant cells that contain the vector backbone DNA of the DNA plasmid. The gene products of the non-lethal negative selectable marker gene are involved in plant hormone biosynthesis pathways, plant hormone substrate diversion plant , hormone degradation, plant hormone signaling or metabolic interference. The use of these DNA plasmids to transform plant cells provides for the enhanced production of commercially viable plants.

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Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed April 9, 2004 and granted February 24, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 9, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 9, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 9, 2004
GrantedFebruary 24, 2015
Term endedApril 9, 2024
Patent numberCA 2521674 C
Classification (IPC)C12N15/84 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedApril 9, 2004Patent grantedFeb 24, 2015Term endedApril 9, 2024

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.